Move KeyCharacterMap to enum class

Bug: 160010896
Test: compiles
Change-Id: Ia8c0d976665acf817f083726dcac10db0cd91048
diff --git a/libs/input/Keyboard.cpp b/libs/input/Keyboard.cpp
index 38a68b3..14dc9e5 100644
--- a/libs/input/Keyboard.cpp
+++ b/libs/input/Keyboard.cpp
@@ -128,7 +128,7 @@
     }
 
     base::Result<std::shared_ptr<KeyCharacterMap>> ret =
-            KeyCharacterMap::load(path, KeyCharacterMap::FORMAT_BASE);
+            KeyCharacterMap::load(path, KeyCharacterMap::Format::BASE);
     if (!ret) {
         return ret.error().code();
     }
@@ -159,9 +159,9 @@
 bool isEligibleBuiltInKeyboard(const InputDeviceIdentifier& deviceIdentifier,
         const PropertyMap* deviceConfiguration, const KeyMap* keyMap) {
     // TODO: remove the third OR statement (SPECIAL_FUNCTION) in Q
-    if (!keyMap->haveKeyCharacterMap() || isKeyboardSpecialFunction(deviceConfiguration)
-            || keyMap->keyCharacterMap->getKeyboardType()
-                    == KeyCharacterMap::KEYBOARD_TYPE_SPECIAL_FUNCTION) {
+    if (!keyMap->haveKeyCharacterMap() || isKeyboardSpecialFunction(deviceConfiguration) ||
+        keyMap->keyCharacterMap->getKeyboardType() ==
+                KeyCharacterMap::KeyboardType::SPECIAL_FUNCTION) {
         return false;
     }